Coffee grinder



FIG. 1 is a perspective view of a coffee grinder showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof, the electric cord shown broken away is understood to represent indeterminate length. 

The ornamental design for a coffee grinder, as shown and described. 